Elga supplies water treatment to Parker Domnick

Elga Process Water has provided Parker Domnick Hunter's process division with a high-purity water treatment system to supply in excess of 15m3/h, including recycled water.

Mains water is pre-treated by a pair of Carbosoft units to remove hardness and free chlorine prior to passing through reverse osmosis (RO) modules.

This is followed by electrodeionisation (CDI-LX) and ultrafiltration to produce high-purity water with conductivity of less than 1.3uS/cm at 25C, TOC less than 500ppb, total bacteria below 100cfu/ml and bacterial endotoxins less than 0.125EU/ml.

RO and CDI-LX membrane processes are heat-sanitisable, and the two stainless steel ring-main distribution systems are provided with UV and ozone disinfection facilities.

Elga Process Water designed and installed the two ring mains, and carried out modifications to two existing distribution systems to improve performance; the work was complemented by Parker Domnick Hunter's own microfiltration housings and cartridges, which have been installed into this system.

The water purification plant is supported by a five-year comprehensive service and maintenance contract, under which Elga Process Water inspects the system every month and services it quarterly.

The contract includes all consumable items, chemical cleans and spare parts.

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